Conversion of methane to benzene over Mo2C and Mo2C/ZSM-5 catalysts |
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Authors: | F Solymosi A Szöke J Cserényi |
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Affiliation: | (1) Institute of Solid State and Radiochemistry, A. József University, Hungary;(2) Reaction Kinetics Research Group of the Hungarian Academy of Sciences, PO Box 168, H-6701 Szeged, Hungary |
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Abstract: | The activation and dehydrogenation of CH2 on Mo2C and MO2C/ZSM-5 have been investigated under non-oxidizing conditions. Unsupported Mo2C exhibited very little activity towards methane decomposition at 973 K. The main reaction pathway was the decomposition of methane to give hydrogen and carbon with a trace amount of ethane. Mixing Mo2C with ZSM-5 support somewhat enhanced its catalytic activity, but did not change the products of the reaction. A dramatic change in the product formation occurred on partially oxidized Mo2C/ZSM-5 catalyst; besides some hydrocarbons benzene was produced with a selectivity of 70–80% at a conversion of 5–7%. Carburization of highly dispersed MoO3 on ZSM-5 also led to a very active catalyst: the conversion of methane at the steady state was 5–6% and the selectivity of benzene formation was 85%.This laboratory is a part of the Center for Catalysis, Surface and Material Science at the University of Szeged. |
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Keywords: | methane conversion to benzene decomposition of methane Mo2C catalyst Mo2C/ZSM-5 catalyst oxidation of Mo2C MoO3/ZSM-5 catalyst |
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